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🗣️ 情景例句
Ooh, speaking of keeping busy-I have an early start tomorrow,and the baby-sitter has to get home.
哦， 说到忙于工作，我明天还得早起，而且临时保姆也该回家了。
Experience is the best teacher.
经验是良师。
as the wave leaves the particles behind back to its starting point again.
当波浪把微粒留在身后时又回到出发点。